Investigations on the effect of heating temperature and cooling rate on evolution of microstructure in an α + β titanium alloy

2018 ◽  
Vol 33 (8) ◽  
pp. 946-957 ◽  
Author(s):  
Aman Gupta ◽  
Rajesh Kisni Khatirkar ◽  
Amit Kumar ◽  
Manendra Singh Parihar
Keyword(s):  
Titanium Alloy ◽  
Cooling Rate ◽  
Heating Temperature ◽  
Image Position ◽  
Evolution Of Microstructure

Abstract

Continuous Cooling Transformation of Overcooling Austenite and Structure Evolution of Si Steel

2013 ◽  
Vol 652-654 ◽  
pp. 947-951
Author(s):  
Hui Li ◽  
Yun Li Feng ◽  
Da Qiang Cang ◽  
Meng Song
Keyword(s):  
Phase Transformation ◽  
Cooling Rate ◽  
Optical Microscope ◽  
Structure Evolution ◽  
Upward Trend ◽  
Continuous Cooling Transformation ◽  
Continuous Cooling ◽  
Hardness Tester ◽  
Gleeble 3500 ◽  
Evolution Of Microstructure

The static continuous cooling transformation (CCT)curves of 3.15 Si-0.036 C-0.21 Mn-0.008 S-0.008 N-0.022 Al are measured on Gleeble-3500 thermal mechanical simulator, the evolution of microstructure and the tendency of hardness are investigated by optical microscope (OM) and hardness tester. The results show that there is no evident change in microstructure which mainly are ferrite and little pearlite under different cooling rates, but the transition temperature of ferrite is gradually reduced with the increase of cooling rate. When the cooling rate is increased from 0.5°C/s to 20°C/s, the ending temperatures of phase transformation are decreased by 118°C, when cooling rate reaches to 10, Widmanstatten ferrite appears. The hardness of the steel turns out gradual upward trend with the increase of cooling rate.

Cooling rate dependent undercooling of Bi in a Zn matrix by differential fast scanning calorimetry

2014 ◽  
Vol 30 (2) ◽  
pp. 242-247 ◽  
Author(s):  
Linfang Li ◽  
Bingge Zhao ◽  
Bin Yang ◽  
Quanliang Zhang ◽  
Qijie Zhai ◽  
...  
Keyword(s):  
Cooling Rate ◽  
Scanning Calorimetry ◽  
Rate Dependent ◽  
Fast Scanning Calorimetry ◽  
Image Position

Abstract

Origins of different tensile behaviors induced by cooling rate in a near alpha titanium alloy Ti65

Materialia ◽  
2018 ◽  
Vol 1 ◽  
pp. 128-138 ◽  
Author(s):  
Ke Yue ◽  
Jianrong Liu ◽  
Shaoxiang Zhu ◽  
Lei Wang ◽  
Qingjiang Wang ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Cooling Rate ◽  
Alpha Titanium

Relationship between temperature and sterilizing efficiency of heat treatments of equal duration. Experimental testing with suspensions of spores in milk heated in an ultra-high-temperature sterilizer

1975 ◽  
Vol 42 (3) ◽  
pp. 437-444 ◽  
Author(s):  
J. Hermier ◽  
P. Begue ◽  
O. Cerf
Keyword(s):  
High Temperature ◽  
Heating Temperature ◽  
Experimental Testing ◽  
Bacillus Coagulans ◽  
Efficiency Curve ◽  
Special Effect ◽  
Influence Of Temperature ◽  
Dimensionless Constant ◽  
Image Position ◽  
Ultra High Temperature

SummaryA relationship between temperature and sterilizing efficiency of heat treatment at constant time is described and checked experimentally using spores of Bacillus coagulans 604 in a pilot ultra-high-temperature plant. The relation is:whereN0andNare initial and final concentrations of spores,Tthe temperature (°C),zthe temperature coefficient (°C,z=10/logQ10) andAa dimensionless constant. A special effect of the injection of spores into live steam is observed. The sterilizing efficiency curve can be used in determining the heating temperature for a desired sterilizing efficiency and in predicting the influence of temperature fluctuation on sterilizing efficiency.

Influence of heating temperature in vacuum on the surface relief of titanium alloy sheet

1986 ◽  
Vol 21 (5) ◽  
pp. 405-407
Author(s):  
V. V. Shevchenko ◽  
N. N. Lobanova ◽  
G. A. Ivanishcheva
Keyword(s):  
Titanium Alloy ◽  
Surface Relief ◽  
Heating Temperature ◽  
Alloy Sheet

Formation of nanoporous copper through dealloying of dual-phase Cu–Mn–Al alloy: The evolution of microstructure and composition

2012 ◽  
Vol 27 (21) ◽  
pp. 2771-2778 ◽  
Author(s):  
Ying Tang ◽  
Ying Liu ◽  
Lixian Lian ◽  
Xuezhe Zhou ◽  
Lin He
Keyword(s):  
Al Alloy ◽  
Dual Phase ◽  
Nanoporous Copper ◽  
Image Position ◽  
Evolution Of Microstructure

Abstract

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